User-Exit bug results in mess of address data in GTS

Dear all,

we have a user exit EXIT_SAPLSLL_LEG_PARR3_001 in place to filter some customers for the interface to GTS from the R3.

we have deleted entries in the internal table CT_KNA1 only. we didn't do a deletion in the CT_ADDR1_COMPLETE table. this was a mistake.

SAP is not checking the numbers again, but is only counting the entries in CT_KNA1 and takes the the same number of enries in CT_ADDR1_COMPLETE without verifing.

now we have 10% of wrong or missing addresses in GTS.

does anyone have experience in this area?

any help is greatly appreciated, of course it is urgent.

thank you

Peter