SAP Function WRF_REF_CHECK_DEL - Check whether reference is used elsewhere

Parameter	Reference	Type	Length	Default	Optional	Text
PXT_ITEM	WRF_REF_ITEM_PRG_TTY	h	145			Table for WRF_REF_ITEM_PRG_STY

Exception	Text
NO_UPD_RECORDS	All items exist in other modules too

Functionality
This function module is called from transaction WRF_REF when referencesare deleted. It checks whether the pseudo-relevance flag for SAPForecast & Replenishment can be reset.
The system performs the following steps:
Search for occurrences of each item in parameter table PXT_ITEM outsidethe module given in PXT_ITEM-REF_MODULE.
Delete each entry in PXT_ITEM if such an occurrence was found in step 1.
As a result, table PXT_ITEM contains only those material/plantcombinations that occur only in the module specified inPXT_ITEM-REF_MODULE.