Thanks Sai & Daryl for these clarifications. Sai said “This value is calculated from the “Resource Availability” table in Resource Information dialog.” ==> I have done a quick test and I have not seen the expected result: On 24/09 I’ve created a new ms poject file with 1 resource Tonia with following availability: From: not defined to: 25/09/2020 100% From: 26/092020 to: not defined 75% As expected, when I look at the MAX-UNITS in the resource sheet today, 24/09/2020, I see 100%. Which is correct. When I now change my system date to 26/09/2020 and open the ms project file, I would expect to see the MAX-UNITS to be 75%. This is not the case, the MAX-UNITS remains 100% I do have a screenshot of this which I could share but there is no way to add pictures, files in this forum.