'Remove Assigned Supplier' button disabled in SOS Tab

Hi Forum,

We are on SRM 701, when changing a shopping cart in SOCO Step2 the remove assigned supplier button in SOS tab is disabled.

I debugged and found that class /SAPSRM/CL_PDO_META_BO_SC method GET_ACTION_EDIT has below code:

IF iv_action NE /sapsrm/if_pdo_action_c=>gc_action_delete_item        AND  " DELETE_ITEM

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_edit               AND  " EDIT SC

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_display            AND  " DISPLAY

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_confirm_receipt    AND  " CONFIRM_RECEIPT

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_enter_invoice      AND  " ENTER_INVOICE

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_show_catalog_item  AND  " Catalog Item

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_records_management AND  " Records Management

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_print_preview      AND  " Print Preview

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_save               AND  " Copy item to clipboard

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_refresh            AND

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_create_sc          AND

   iv_action NE /sapsrm/if_pdo_action_c=>gc_action_add_document.

   CLEAR rv_enabled.

ENDIF.

The action for remove button is /sapsrm/if_pdo_action_c=>GC_ACTION_REMOVE_SUP which is not in above code so when is this button enabled?

Has anyone faced this issue button being disabled?

Thanks,

Anubhav