Funding was not approved for orders in the guard. I was asked to come in on RMAs. What is that?

I stole this from google: A muta is the equivalent of one day of active duty pay for that rank. You can look up the rate of one active duty day online searching for military pay charts 2016. Simply take the monthly rate for that rank and divide by 30 for the daily rate. On drill weekend you are usually paid for 4 mutas (4 active duty days) not the 2 days you actually work. Weekend drill pay (2 days) is twice the amount of pay you get for 2 active duty days.
However, RMA is paid at the rate of 1 active duty day, and you can not be paid for more than 1 RMA per day. So essentially, a day of RMA pay is half of what a day of weekend drill pay is, so if you worked 30 RMA days in a row it would equal one months active duty pay (but you can’t because you are also limited on the number of RMA days per year you can work). I think the system is set up this way as an incentive for people to take time from their busy lives to enlist in the reserves. You get double the pay of an active duty person for the 2 days you actually work each month.

I don’t remember what RMA stands for, but it’s another way for the Guard to pay people and it comes from a different pot of money.

Readiness Management Assembly (RMA), also known as Readiness Management Period (RMP), equals one day of pay. You must perform at least 4 hours of duty in order to be paid for the RMA.
Each reservist is funded for 36 of these a year. The fastest way to bring an MDAY or TPU in for work, as they only have to be approved at company level and they are already funded at the beginning of the FY.
What you do at drill are Unit Training Assemblies, (UTAs) or more commonly, Multiple Unit Training Assemblies (MUTAs) which can be paid at two periods per day, each period at least 4 hours. Each reservist is funded for 48 of these, or 24 days per year.
Orders are approved and funded at BDE level or higher, which takes more time to approve and publish, and most BDEs often receive their funding for orders quarterly, so it runs out pretty quick each quarter.