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PLKO -tasklist header-Internal counter???/?

Former Member
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Can any one could explain me what exactly is this field

"Internal counter"?

Also it would be great if any one explain me the linkage between the tables PLKO PLAS & PLPO????/

I know the key fields by which these tables can be attached !

like Task activity type,Group counter number and so on !

But i want is exact link by which these tables c an be linked


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Active Contributor
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See below relation for routing table's

Table MAPL, pass input material number, plant, alternative routing group couter

Table PLKO, filed PLNNR, PLNAL eq mapl-plnnr, mapl-plnal

Table PLAS, field PLNNR, PLNAL eq mapl-plnnr, mapl-plnal and LOEKZ ne ' ', take field PLNKN

Table PLPO, field PLNNR, PLNKN eq plas-plnnr, plas-plnkn