Note 603411 - IT0105: System user can be saved in long field

This is configurable table to increase the length to accomodate long texts in 105 infotype or 185 inftyp as well. 241 characters instead of 30characters http://sap.ittoolbox.com/groups/technical-functional/sap-hr/it0105-use-of-usrid_long-field-1332726 Assuming that you have already created your bespoke subtype for infotype 0105 - Communication, go to table T591C (V_T591C in fact). Search for your new subtype and flag "Long_ID" against it. You will have now... 241 characters instead of 30, I hope it's enough for your requirement Thanks to Martin for his contributions.