Skip to Content
avatar image
Former Member

backward scheduling

HI,

1 is it by defualt system always Performs backward scheduling

2. in mat master we have consumptions mode in mrp3 is it related to backward scheduling

PL suggest

Add comment
10|10000 characters needed characters exceeded

  • Get RSS Feed

1 Answer

  • Best Answer
    avatar image
    Former Member
    Apr 28, 2009 at 06:49 AM

    Hi,

    Yes, By default scheduling is always done by Backward.

    Consumption mode

    The consumption mode controls the direction on the time axis in which the system consumes requirements.

    Use

    In backward consumption, sales orders, dependent requirements or material reservations consume planned independent requirements that lie before the requirements date.

    In forward consumption, sales orders, dependent requirements, or material reservations consume planned independent requirements that lie after the requirements date.

    Thanks,

    Raja

    Add comment
    10|10000 characters needed characters exceeded

    • Former Member Former Member

      Qn No 1

      We can make the system to stop with backward scheduling only and no forward at all ( t code OVLY)

      We can make system to stop after backward scheduling and not going to forward at all, even if backward fails

      In this case yoiu will not get confirmed dates for deliveries if backward fails

      But we cannot make system to perform Forward scheduling as first by default

      That will be illogical

      Qn No 2

      In house production time , planned goods recipt time these two are added up and this is one parameter

      RLT This is another parameter

      Suppose In house production time is 1 day planned goods recipt time is 1 day and the total is 2 days

      RLT is 3 days

      Now the system has a choice between 2 and 3 only and system will take the RLT time only

      RLT time has the complete control

      Qn No 3

      Backward scheduling there is no qn of these in house production time , planned goods recipt time & RLT times at all ,they will not come into play at all ,as the material is available thro the lead times enough quantities to meet the requested delivery date of the customer

      In forward scheduling these inhouse, RLT and GR time system arrives at MAD then transit,transportation planning.pick pack and load times are added

      So only in forward these times are taken ino account

      Regards

      Raja