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Resource Analysis in IFS Cloud shows negative resource requirements

  • 16 February 2024
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Dear colleagues,

We are on IFS Cloud 22R2 SU13 and it happens that Resource Analysis page shows negative values as the resource requirements for some days. We have resource requirements from Project Activities only. I do not understand how the resource requirements can be negative.

Values in Planned Hours, Planned Minutes fields in Resource Activity Load Detail page are also negative. I am attaching couple of screenshots.

Can anybody explain?


Thank you very much.
Best Regards
Antonin

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Best answer by Hugh Batho 16 February 2024, 10:21

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One possible explanation is the way that the demand's load is spread. Due to rounding and summing there is an adjustment demand made on the first day of the linear spread period (even of non-linear profile spreads they are broken down into linear periods). Therefore if the spreading results in relatively small daily amounts that need to be adjusted for rounding then it is possible for a negative amount to be created in order to adjust for differences due to rounding.

So for example imagine that 7.5 hours were planned over 100 working days – this would result in a linear spread of 0.075 hrs per day – this is rounded to 0.08 hrs per day and when checked summed this results in 8 hrs being spread – therefore to adjust for this a correction demand is created for the first day of the linear spread period of -0.42 hrs – as in screenshots

So it possible for some demands to appear to be negative – do not know if this would be the cause in your case.

 

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