EBS : Search String to pull customer from tag 86 of incoming MT940

Hi ,

In MT940 file for incoming payment, in tag 86 I receive teh tag as CUSTXXXXX , where XXXXX is the customer number.

I want to pick the customer number XXXXX from there and post is on that customer account.

I am using the 001 standard algorithm. ANd teh posting rule config is as below.

Extrenal transaction types are as below

Serach string is defined as below

But during EBS upload I am getting the error

Error: (F5 102) Customer * is not defined in company code CH20

Please see the below and let me know, how the same can be resolved and the search string can be correctly used.

Regards

SR