SAP Message SMO9090 - CONDITION INVALID.

,,Formats that can be used are as below:
Note: The field name specified should belong to the source structure.
1) &IPSTRU- =
,,E.g.,,&IPSTRU-KTOKD = 'CONT'
,,,,&IPSTRU-CODE = 123
,,,,&IPSTRU-CODE = '12AS3'
2) &IPSTRU- = &IPSTRU-
,,E.g.,,&IPSTRU-KTOKD = &IPSTRU-SOURCE
3) &IPSTRU- = ANDIpstru- =
4) &IPSTRU- = ORIpstru- =
5) &IPSTRU- = &IPSTRU-<(>
<<)>Fieldname2> AND &IPSTRU- =Ipstru-
6) &IPSTRU- = &IPSTRU-<(>
<<)>Fieldname2> OR &IPSTRU- =Ipstru-