Carry out the following steps to create a validation rule to enforce the entry of a standard two-letter country code on an account record:
- Click on the Setup gear icon in the top right-hand corner of the main Home page, as shown in the following screenshot:
- Click on Setup, as shown in the following screenshot:
- Navigate to the Account Validations Rule setup page by clicking the following: Objects and Fields | Object Manager | Account | Validation Rules.
Locate the Validation Rules section on the right of the page.
- Click on New.
You will be presented with the Account Validation Rule Edit page.
- Type Valid Billing Country in the Field Label textbox.
Upon clicking out of the textbox, the name changes to Valid_Billing_Country.
- Leave the Active checkbox checked.
- Optionally, enter details in the Description field.
Locate the Error Condition Formula section positioned lower down on the page.
- Paste in or enter the following code:
OR( ISBLANK(BillingCountry), LEN(BillingCountry) < 2, NOT( CONTAINS( "AF:AX:AL:DZ:AS:AD:AO:AI:AQ:AG:AR:AM:" & "AW:AU:AZ:BS:BH:BD:BB:BY:BE:BZ:BJ:BM:BT:BO:" & "BA:BW:BV:BR:IO:BN:BG:BF:BI:KH:CM:CA:CV:KY:" & "CF:TD:CL:CN:CX:CC:CO:KM:CG:CD:CK:CR:CI:HR:" & "CU:CY:CZ:DK:DJ:DM:DO:EC:EG:SV:GQ:ER:EE:ET:FK:" & "FO:FJ:FI:FR:GF:PF:TF:GA:GM:GE:DE:GH:GI:GR:GL:" & "GD:GP:GU:GT:GG:GN:GW:GY:HT:HM:VA:HN:HK:HU:" & "IS:IN:ID:IR:IQ:IE:IM:IL:IT:JM:JP:JE:JO:KZ:KE:KI:" & "KP:KR:KW:KG:LA:LV:LB:LS:LR:LY:LI:LT:LU:MO:MK:" & "MG:MW:MY:MV:ML:MT:MH:MQ:MR:MU:YT:MX:FM:MD:MC:" & "MC:MN:ME:MS:MA:MZ:MM:MA:NR:NP:NL:AN:NC:NZ:NI:" & "NE:NG:NU:NF:MP:NO:OM:PK:PW:PS:PA:PG:PY:PE:PH:" & "PN:PL:PT:PR:QA:RE:RO:RU:RW:SH:KN:LC:PM:VC:WS:" & "SM:ST:SA:SN:RS:SC:SL:SG:SK:SI:SB:SO:ZA:GS:ES:" & "LK:SD:SR:SJ:SZ:SE:CH:SY:TW:TJ:TZ:TH:TL:TG:TK:" & "TO:TT:TN:TR:TM:TC:TV:UG:UA:AE:GB:US:UM:UY:UZ:" & "VU:VE:VN:VG:VI:WF:EH:YE:ZM:ZW", BillingCountry)))
- In the Error Message section, enter the text Please enter a valid ISO 3166 two alpha letter country code. For example: US = United States; GB = United Kingdom; IE = Ireland; AU = Australia etc.
- For the Error Location option, select Field.
You will be presented with the Field selection pick list.
- Select the field, Billing Country.
- Finally, click on Save, as shown in the following screenshot:
