Hi Victoria,
We are running into the same issue, I can apply negative amounts to a positive cash receipt in GP 2010 SP3 and I believe SP4 without the YE update. Here are screen shots below:
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Next, applying a negative amount:
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Apply the rest to another invoice:
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Now, when trying to enter the same process this error message is received:
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I know the functionality is a negative cash receipt to enter a negative apply and a positive cash receipt to enter a positive apply. However, it previously worked to enter a positive cash receipt and then enter negative amounts in the apply prior to the Year End update...
