Please refer to the fix below that pertains to the version you are using:
Microsoft Dynamics GP 2013Microsoft Dynamics GP 2013 -This issue was fixed in R2 (12.00.1745 or higher) for Microsoft Dynamics GP 2013. (Quality issue TFS #69420/PS #72129)
Microsoft Microsoft Dynamics GP 2010 - This issue started happening with SP3 for Microsoft Dynamics GP 2010 and was fixed in SP4(11.00.2248 or higher) for Microsoft Dynamics GP 2010. (Quality issue PS #67592)
*If needed, refer to the work-around listed in the MORE INFORMATION section below until you can get on the version listed above. However, if you are already on these versions and it still doesn't work, then go to the next step.
2. If you still receive the message and are on a version higher than noted above, please consult the official form you received to verify you have keyed the Tax Registration number correctly and it is for the correct country code you selected. A validation of the number is performed by Microsoft Dynamics GP, and so you must enter the number without any letters or spaces.
You will have your own unique Tax Registration number for your company, but for example, if your Tax Registration number is: GB 999 9999 73
Omit any letters and spaces, and enter it in the Tax Registration field in Microsoft Dynamics GP like this: 999999973
NOTE: You can validate the Tax Registration number you are trying to enter on the below website for the European Commission:
Option 1 - When you are stuck in the Debtor or Creditor Maintenance Options window, drag the window out of the way and clear out the Country code of 'GB' on the main Debtor or Credit Maintenance window. Close the Maintenance Options window. Now press Save on the Creditor Maintenance window, and your changes will be saved. Then go back into the Debtor or Creditor Maintenance window and put the country code of 'GB' back on again (do not open the Options window this time) and save, as it will be needed for reporting purposes.
Option 2 - If you are not using VAT Daybook, you can disable it. (Or uninstall it from the Control Panel | Programs and Features.)
Article ID: 2744175 - Last Review: 6 May 2015 - Revision: 1