# Processing rules on fields in a map in Natural **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Natural, Natural-on-Mainframes\ **Created:** [April 1, 2021, 8:41am UTC](https://techcommunity.softwareag.com/t/processing-rules-on-fields-in-a-map-in-natural/240194 "2021-04-01T08:41:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![bertus56](https://avatars.discourse-cdn.com/v4/letter/b/ee59a6/32.png) [@bertus56](https://techcommunity.softwareag.com/u/bertus56)\ **Post date:** [April 1, 2021, 8:41am UTC](https://techcommunity.softwareag.com/t/processing-rules-on-fields-in-a-map-in-natural/240194/1 "2021-04-01T08:41:55Z")
How do I code a processing rule on a map for an array - specifically concerning the index. If I manually change the index on each occurrence of the array - all the occurrences changes similarly. Example Rule \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Array STRT-MIN > ``` > > + Rank 0 S 1 L 1 Report Mode > > ``` ALL …+…10…+…+…+…30…+…+…+…50…+…+…+…70. 0010 IF & (1) \> 59 THEN REINPUT ‘MAX MINUTES 59’ MARK \*& (1) ---
**Author:** ![Nikolay\_Kuhta](https://avatars.discourse-cdn.com/v4/letter/n/35a633/32.png) [@Nikolay\_Kuhta](https://techcommunity.softwareag.com/u/Nikolay_Kuhta)\ **Post date:** [April 1, 2021, 3:54pm UTC](https://techcommunity.softwareag.com/t/processing-rules-on-fields-in-a-map-in-natural/240194/2 "2021-04-01T15:54:20Z")
Hi Bertus, Well, I used to do such things as follows (just an example) DEFINE DATA LOCAL 1 #I (I4) END-DEFINE FOR #I = 1 TO 3 IF & (#I) NOT = ‘22’ REINPUT ‘22 is required’ MARK \*&(#I) END-IF END-FOR Hope this would help you 🙂 ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [March 19, 2024, 4:42pm UTC](https://techcommunity.softwareag.com/t/processing-rules-on-fields-in-a-map-in-natural/240194/3 "2024-03-19T16:42:15Z")
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