Error: The field OklahomaCounty with value [ENTERED_VALUE], data format is not correct

Error message

1. Validation failed on [FILE_ID]:

Form: FormHeader
Description: County for Oklahoma address
LineNumber: Header
Description: Dependent Relationship
LineNumber: N/A
Error: The field 'OklahomaCounty' with value '[ENTERED_VALUE]', data format is not correct.

Element Name: OklahomaCounty
XPath: /ReturnState[1]/ReturnDataState[1]/FormOK514[1]/FormHeader[1]/OklahomaCounty[1]
XML Fragment: [ENTERED_VALUE]
Field Key: 210,3,11,0,0,0,0,0,0
Error Code: [CODE]
Error Reason: '[ENTERED_VALUE]' violates enumeration constraint of 'Adair Alfalfa Atoka Beaver Beckham Blaine Bryan Caddo Canadian Carter Cherokee Choctaw Cimarron Cleveland Coal Comanche Cotton Craig Creek Custer Delaware Dewey Ellis Garfield Garvin Grady Grant Greer Harmon Harper Haskell Hughes Jackson Jefferson Johnston Kay Kingfisher Kiowa Latimer Le Flore Lincoln Logan Love McClain McCurtain McIntosh Major Marshall Mayes Murray Muskogee Noble Nowata Okfuskee Oklahoma Okmulgee Osage Ottawa Pawnee Payne Pittsburg Pontotoc Pottawatomie Pushmataha Roger Mills Rogers Seminole Sequoyah Stephens Texas Tillman Tulsa Wagoner Washington Washita Woods Woodward'.
The element '{http://www.irs.gov/efile}OklahomaCounty' with value '[ENTERED_VALUE]' failed to parse.

Solution

Go to
Organizer
States
Oklahoma
General Information
General Information
section, Line
County in which partnership is located
.
Enter a valid Oklahoma county name. Oklahoma doesn't accept entries from other states.
Format the county name with only the 1st letter capitalized (for example,
Tulsa
not
TULSA
).
Run a full recompute and recreate the e-file.