Raj Agrawal
Chief Financial Officer at Western Union
Thank you, Devin, and good afternoon everyone. Today I will discuss our fourth quarter results and 2022 financial outlook. I will focus my comments primarily on the fourth quarter. The similar information for the full year can be found in our press release and the attached financial schedules.
Fourth quarter revenue of $1.3 billion increased 1% on a reported basis or 2% on a constant currency basis. Currency translation, net of the impact from hedges reduced fourth quarter revenues by approximately $15 million compared to the prior year. In the C2C segment, revenue declined 1% on a reported basis and was also slightly negative on a constant currency basis.
C2C transactions were flat compared to the same period in the prior year while digital money transfer continued the strong transaction trend with 17% growth in the fourth quarter, which was offset by a decline in retail money transfer. Total C2C cross-border principal growth accelerated to 5% on both a reported and constant currency basis, primarily due to growth in digital money transfer. Total C2C principal per transaction or PPT was up 4% on a reported and constant currency basis, driven by mix and changes in consumer behavior.
Digital money transfer revenues, which include wu.com and digital partnerships increased 13% on a reported basis or 12% constant currency. Our digital money transfer business again achieved a quarterly high in transactions, revenue, and principal. Wu.com revenue grew 9% on a reported and constant currency basis on transaction growth of 6%. Wu.com cross-border revenue was up 12% in the quarter.
Moving to regional results. In the fourth quarter, North America revenue increased 2% on both a reported and constant currency basis on transaction declines of 2%. Revenue growth was supported by solid U.S. outbound trends, partially offset by U.S. to Cuba due to regulations limiting our ability to provide services and we continue to see softness in U.S. domestic money transfer. We are pleased with the momentum we are seeing at Walmart in the U.S. and we expect this to be a more meaningful contributor to 2022 results.
Revenue in the Europe and CIS region declined 8% on a reported basis or 7% constant currency on transaction growth of 1%. The digital partnership business continued to show solid growth offset by softness in the retail business as the region grew over a tough comparison given the strong rebound we saw in the prior year period. The spread between transactions and constant currency revenue in the quarter was primarily related to the digital partnership business which has been performing very well.
Revenue in the Middle East, Africa, and South Asia region grew 2% on both a reported and constant currency basis, while transactions increased 6%. Digital offerings continue to drive revenue and transaction growth in the region, offset by softness in retail. The digital partnership business continued to generate strong solid performance and was the main contributor to the spread between revenue and transactions. Revenue growth in the Latin America and Caribbean region was up 8% or 12% constant currency on transaction growth of 2% as the region grew over COVID-19 impacts.
We continue to see solid growth coming from Mexico, Colombia and Chile. The driver of the spread between transactions and constant currency revenue growth resulted from mix factors in the retail business. Revenue in the APAC region was flat on both a reported and constant currency basis, while transactions declined 13% driven by softness in our intra-Philippines business. This is a lower revenue per transaction business, resulting in a larger impact on transactions and relatively lower impact on revenue.
Business Solutions revenue increased 22% on both a reported and constant currency basis. Revenue growth was driven by improvements in international trade as well as increased activity in the education and financial institution verticals. The segment represented 8% of company revenues in the quarter and benefited by growing over a depressed revenue level in the prior year period. In addition, we remain on track with the timing of the planned divestiture of Business Solutions. As a reminder, the transaction is anticipated to close in two parts with the first closing expected to occur in the first quarter of 2022 and the second closing expected to occur later in the year. I will discuss the impacts to our financial outlook in the -- to our financials in the Outlook section.
The other revenues represented 5% of total company revenues and increased 5% on a reported basis compared to the prior year period. Other revenues primarily consist of retail bill payments in the U.S. and Argentina and retail money orders in the U.S.
Turning to margins and profitability. The consolidated GAAP operating margin in the quarter was 24.7% compared to 17.9% in the prior year period while the consolidated adjusted operating margin was 24.9% in the quarter compared to 18.8% in the prior year. The GAAP and adjusted margin increases resulted primarily from increased profitability in our Business Solutions segment, lower planned marketing expense, lower agent losses, and the favorable foreign exchange impact.
Our marketing investment for the full year was consistent with the prior year. However, the timing differed on a quarter-by-quarter basis. The GAAP operating margin also improved during -- due to restructuring costs in the prior year period. Adjusted operating margin excludes M&A expenses in both the current and prior year period and last year's restructuring expenses.
Moving to segment margins. Note that M&A expenses are included in other operating margin for both the current and prior year periods and segment margins exclude last year's restructuring charges. In the fourth quarter of 2021, C2C operating margin was 24.2% compared to 20.5% in the prior year period. The increase in the operating margin was driven by favorability and commission mix and other variable costs, including lower agent losses as well as lower planned marketing expense.
Business Solutions operating margin was 30.8% in the quarter compared to negative 0.2% in the prior year period. The increase in operating margin was primarily due to increased revenue and a facility closure costs incurred in 2020. During 2021, the Business Solutions segment generated $422 million of revenue, and excluding corporate allocations delivered $120 million of EBITDA and $104 million of operating profit. In total, Business Solutions contributed approximately $0.22 to 2021 adjusted EPS.
Other operating margin was 21.3% compared to 15.8% in the prior-year period, primarily due to higher revenue. The GAAP effective tax rate in the quarter was 6.7% compared to 11% in the prior-year period, while the adjusted effective tax rate in the quarter was 12.1% compared to 11.6% in the prior year period. The decrease in the company's GAAP effective tax rate was due to discrete benefits associated with the pension termination.
GAAP earnings per share or EPS was $0.42 in the quarter compared to $0.43 in the prior year period, while adjusted EPS was $0.64 in the quarter compared to $0.45 in the prior year period. The decrease in GAAP EPS reflects the non-cash charge for the pension plan termination, partially offset by increased Business Solutions segment operating profit and lower planned marketing expense, while adjusted EPS increased due to the same factors adjusted for certain items including the pension plan termination and acquisition and divestiture costs. To offer some color on our pension plan termination non-cash charge, we have transitioned our obligations through the purchase of annuities completing the previously announced process in a surplus position.
Turning to our cash flow and balance sheet. During 2021, our business generated over $1 billion of operating cash flows of which, almost 75% was returned to our shareholders as a combination of dividends and share repurchases. The outstanding share count at quarter-end was 394 million shares and today, we announced that our Board of Directors has approved a new three-year, $1 billion share repurchase authorization and a $0.235 quarterly dividend payable on March 31, 2022. Capital expenditures in the year were approximately $215 million. At the end of the quarter, we had cash and cash equivalents of $1.2 billion and debt of $3 billion.
Moving to our outlook. Today, we provided the financial outlook for full year 2022 reflecting recent business trends and macroeconomic conditions. Our outlook assumes no material change of macroeconomic conditions. GAAP figures reflect an expected partial year of Business Solutions ownership including contractual payments to the buyer, representing profits between the first and second closings, associated divestiture and acquisition costs, and an estimated pre-tax gain of approximately $280 million subject to regulatory and working capital adjustments.
As the divestiture is expected to close in two phases, approximately 60% of the pre-tax gain is expected to be recognized in the first quarter at the time of the first expected closing, with the remainder recognized at the time of the second closing approximately six months after the first closing. Please note that the precise timing of closings may differ from our current estimates. We also expect to incur incremental divestiture costs in 2022 as we separate Business Solutions.
Adjusted revenue growth and operating margin exclude contributions from Business Solutions. In addition, adjusted operating margin excludes associated divestiture and acquisition costs. The adjusted effective tax rate and EPS exclude the expected gain on sale and M&A costs but will include approximately $0.03 of EPS from Business Solutions partial year results.
We expect GAAP revenue to decline mid-single digits, primarily due to the Business Solutions divestiture and currency. Embedded in our GAAP revenue new year outlook, we have included approximately $130 million of revenue from Business Solutions for the full year. Adjusted constant currency revenue growth is expected to be flat to low single-digit increase excluding the impact of Argentina inflation and excluding the results of Business Solutions in both 2021 and 2022. Our GAAP and adjusted operating profit margin is expected to be between 21% and 22%. We anticipate the GAAP effective tax rate will be in the high teens range reflecting tax on the gain on the sale of Business Solutions. The adjusted effective tax rate is expected to be in the mid-teens range.
GAAP EPS for the year is expected to be in a range of $2.38 to $2.48, which includes the gain on the sale of Business Solutions. Adjusted EPS for 2022 is expected to be in the range of $1.90 to $2.00. During 2022, we anticipate adjusted revenue growth rates in the second half of the year to exceed growth rates in the first half of the year as our business with Walmart, new agent signings, and our digital partnership business continues to ramp.
We also expect 2022 adjusted operating profit margin and adjusted EPS to be higher in the second half of the year, similar to the progression we saw in 2021 due to seasonality and the timing of investments. For the first quarter, we expect recent macro trends to continue, resulting in revenue and the consumer business performing consistent with last year's exit rate. For the first quarter GAAP revenue, our outlook includes $75 million related to Business Solutions.
Thank you for joining our call today, and, operator, we are now ready to take questions.