3724256 - 303 2026: Error 30384 and E010252 avoid uploading the txt file in Spanish Tax portal

Unable to upload the txt file for VAT Declaration (Model 303) for Spain, obtained by means of ES_VAT_DCL_M303_NATIONAL report for certain declarations: February 2026 or 2T 2026, and subsequent.

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reject, rejected, rejection, January, Enero, February, febrero, segundo trimestre, 2T, VAT Return-Form 303, ES_VAT_DCL_M303_NATIONAL, model 303, Impuesto sobre el Valor Añadido, new format requirements, reporting, tax agency portal, form 303, Spain GL Reporting, Spanish, Statutory Reports, Activities & Phases, Runs, Reporting Entity, Legal Reporting, DCR, ACR, Compliance, Format, txt, F1515, F1515_ES_2, FI-LOC-SRF-RUN, Run Legacy Reports, GUI, new format, declaration, legal report, tax authority's platform, agencia tributaria, agenciatributaria, AEAT web site, Declaración anual operaciones con terceras personas, send, sent, Model 303, modelo, statutory declaration, generated file, submitted, Tax Authority, compliance, potential penalties,  march 30, FRECH, El fichero se rechazó, No se importó ningún registro, not valid, El fichero no se puede importar, Compruebe que es un fichero correcto, ver errores,  The file was rejected, No record was imported, error de validación, Notices and errors, Errores y Avisos, warning, 2026, "Sujeto pasivo con derecho a deducir pago a cuenta de entregas de gasolinas, gasóleos y biocarburantes posteriores a la ultimación del régimen de depósito distinto del aduanero" (Tax payer eligible for deductions due to the pre payments for the delivery of gasolines and biodiesel after the extraction from Bonded Deposits), New Tax box 112 "Pago a cuenta de entregas de gasolinas, gasóleos y biocarburantes posteriores a la ultimación del régimen de depósito distinto del aduanero atribuible a la Administración del Estado" (Pre-paid amounts for the delivery of gasolines and biodiesel after the extraction from Bonded Deposits) SPRO, Document and Reporting Compliance, Country/Region-Specific Settings, Spain, Statutory Reporting, VAT Return-Form 303, General Settings, Setting Up Your Statutory Reporting, ES_RPG_ENT, Spain reporting country, Assign Report Categories to Reporting Entity, Report Category ID, ES_VAT_DCL_M303_NATIONAL, Enter Parameters Specific to Reporting Entity,  Debe cumplimentar la casilla 'Sujeto pasivo con derecho a deducir pago a cuenta de entregas de gasolinas, gasóleos y biocarburantes posteriores a la ultimación del régimen de depésito distinto del aduanero'., La casilla 'Sujeto pasivo con derecho a deducir pago a cuenta de entregas de gasolinas, gassóleos y  biocarburantes posteriores a la ultimación del régimen de depósito distinto del aduanero' es obligatoria para periodos mensuales a partir de 02 , KBA , FI-LOC-FI-ES , Spain , Problem