4 Materi als Manag ement (MM) ME00 Purchasing Menu This transaction gives users access to the purchasing menu. T he ar eas acces sible fr om this menu include the purchase order, pur- chase requisition, outline agreement, request for quotation, master data and purchasing reports. name whose changes to the source list are to be shown and a date fro m which all changes are to be viewed. The resulting display shows the details of the change to the source list including user ID, date and time of the change, document change number and the values that were changed. ME01 Maintain Source List This transaction is used to create a source list for a material at a specified plant. The selec- tion screen requires a material and a plant to be enter ed. On the detail sc reen, the use r can add a list of available sources of supply for a material, entering the periods during which procurement from each vendor is possible. The user can flag a vendor as the preferred source of supply for the material a nd also flag vendors as blocked for procurement. ME05 Generate Source List This transaction is used to generate a source list using the system rather than manually entering values. The initial screen allows a single or range of materials to be selected and the dates from which the system will review the transactions to develop the source list. If the test run indicator on the selection screen is highlighted, the system will display a simulation of the source list changes, rather than make the changes. ME03 Display Source List This transaction is used to display the source list for a material at a specific plant. The selection screen requires a material and a plant to be entered. T he display will show a list of vendors if a list has been maintained. The source list shows the valid from and to dates for each vendor, the vendor number, purchasing organization and outline agree- ment, if relevant. ME04 Changes to Source List This transaction shows the changes that have been made to a source list for a spec ific mate- rial. The selection requires a material and plant to be entered. T he user can restr ict the resulting display by entering the person’s ME06 Analyze Sour ce List This transaction is used to analyze the source list for a material or range of materials. The selection screen allows the user to enter a range of dates between which the analysis should be performed. The resulting display will show, for each material/plant combina- tion, whether there is a source list missing. ME07 Reorganize Source List This transaction is used to reorganize the source list. The user is required to enter a material and the date before which all records are to be deleted. The transaction will delete all source list entries before the date entered and is used to remove out of date source list records. 119