Multiple G/L’s against product categories in SRM 7.0

Hello,

I have implemented multiple G/L’s against Product categories, but when I set these up in SPRO>SAP Reference IMG>SAP Supplier Relationship Management>SRM Server>Cross-Application Basic Settings>Account Assignment>Define G/L Account for Product Category and Account Assignment Category

I ticked the ‘Default’ check box for all the entries for example one product category is assigned to 5 G/Ls we have 20 entries because it’s repeated for the different account assignments. Each entry has the ‘Default’ ticked. When raising a shopping cart the default is the highest number G/L. How can I specific a default of my choice?

I tried un-ticking the Default on all G/L and only left it on one G/L but when I click on Save I get the message ‘Select a default for Cat ID, a/c Cat.ERDCLNT220, src syst’

Please advise?

Thanks,

Naz